HomeFreshwater aquarium fishCatfish & plecosHemiancistrus subviridis Hemiancistrus subviridis Scientific name: Hemiancistrus subviridis Werneke, Sabaj P?rez, Lujan & Armbruster, 2005 Hemiancistrus subviridis is a freshwater fish of the family Loricariidae that grows to about 15 cm (5.9 in). It is easy to keep and peaceful, suits community aquariums and needs a tank of at least 210 L (55 US gal), water at 22–26°C (72–79°F) and a pH of 6.6–7.3. Native range: South America, rio Orinoco and rio Casiquiare drainages in Venezuela. Hemiancistrus subviridis care at a glanceCare levelEasyTemperamentPeacefulCommunity tankGoodAdult size15 cm (5.9 in)Minimum tank210 L (55 US gal)Temperature22–26°C (72–79°F)pH6.6–7.3Hardness3–10 dGH (54–178 ppm)DietOmnivore. Accepts flakes, frozen foods and live foods. BiologyDorsal spines (total): 2; Dorsal soft rays (total): 7. Distinguished from all other ancistrins by coloration, lacking a connection between the dorsal and adipose fins and having less than 30 teeth per jaw ramus.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHemiancistrus subviridisFamilyLoricariidae (Armored catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0EnvironmentFreshwater; demersalClimateTropicalDistributionSouth America: rio Orinoco and rio Casiquiare drainages in Venezuela.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless More catfish & plecosOtocinclus cocamaRedtail catfishPhractocephalus hemioliopterusParotocinclus jumboBlue panaqueBaryancistrus begginiBloch's catfishPimelodus blochiiBronze corydorasCorydoras aeneusSee all catfish & plecos SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026